OutBack Extreme
INVERTER/CHARGER
OBX -IC2524P-120/60
Installation Manual
Includes Mounting, Installation, and Product Registration
Warranty Summary
Dear OutBack Customer,
Thank you for your purchase of OutBack products. We make every e ort to assure our power conver-
sion products will give you long and reliable service for your renewable energy system.
As with any manufactured device, repairs might be needed due to damage, inappropriate use, or unin-
tentional defect. Please note the following guidelines regarding warranty service of OutBack products:
• Any and all warranty repairs must conform to the terms of the warranty.
• All OutBack equipment must be installed according to their accompanying instructions and manuals
with speci ed over-current protection in order to maintain their warranties.
• The customer must return the component(s) to OutBack, securely packaged, properly addressed,
and shipping paid. We recommend insuring your package when shipping. Packages that are not
securely packaged can sustain additional damage not covered by the warranty or can void warranty
repairs.
• There is no allowance or reimbursement for an installer’s or user’s labor or travel time required to
disconnect, service, or reinstall the damaged component(s).
• OutBack will ship the repaired or replacement component(s) prepaid to addresses in the continental
United States, where applicable. Shipments outside the U.S. will be sent freight collect.
• In the event of a product malfunction, OutBack cannot bear any responsibility for consequential
losses, expenses, or damage to other components.
• Please read the full warranty at the end of this manual for more information.
About OutBack Power Systems
OutBack Power Systems is a leader in advanced energy conversion technology. Our products include
true sine wave inverter/chargers, maximum power point charge controllers, system communication
components, as well as breaker panels, breakers, accessories, and assembled systems.
Notice of Copyright
OutBack Extreme Inverter/Charger Installation Manual © 2008 All rights reserved.
Disclaimer
UNLESS SPECIFICALLY AGREED TO IN WRITING, OUTBACK POWER SYSTEMS:
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR
OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT, INDIRECT,
CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE
USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK.
Contact Information
OutBack Power Systems
19009 62nd Ave. NE
Arlington, WA 98223 Phone (360) 435-6030 • Fax (360) 435-6019 www.outbackpower.com
Date and Revision • February 2008 REV A
1
TABLE OF CONTENTS
Welcome to the OutBack Power Systems OBX-IC Series Inverter/Charger System ...................................2
OBX-IC Series Inverter/Charger Models .................................................................................................................................2
Parts Included................................................................................................................................................................ ........................3
Required Conductors ........................................................................................................................................................................3
Environmental Concerns ................................................................................................................................................................3
Maintenance ..........................................................................................................................................................................................3
Storage .....................................................................................................................................................................................................3
Safety Instructions...................................................................................................................................................... .........................4
System Protection.................................................................................................................................................... ...........................6
DC Wiring Origination....................................................................................................................................... ...............................6
AC Wiring Origination........................................................................................................................................ ...............................7
AC Wiring Compartment Board................................................................................................................... ..............................7
AC and DC Grounding Requirements............................................................................................. .......................................8
OBX-IC Parts and Accessories................................................................................................................... ....................................8
Mounting........................................................................................................................................................... ....... .............................. 9
Low Voltage Terminals................................................................................................................. ..................................................10
Wire Connections........................................................................................................................... ...................................... ............11
AC Wiring Notes for the Mobile OBX-IC............................................................................................................................ ...12
Low Voltage Wiring..........................................................................................................................................................................13
Inverter and On/O ................................................................................................................................................. ..............13
Auxiliary Output (AUX+ / AUX-)......................................................................................................................... ............14
XCT+ / XCT-................................................................................................................................................................. ...............14
RTS, MATE/HUB Wiring................................................................................................................................................... ...............15
System Installations.......................................................................................................................................................... ...............16
Single OBX System.................................................................................................................................................... .............16
Series/Parallel Dual OBX-IC Con guration ...............................................................................................................17
3-Phase System ..................................................................................................................................................................................19
Generator Interfaces............................................................................................................................................ ..... ......................21
Using Generator or Utility Power ............................................................................................................................................22
Installation Check List..................................................................................................................................... ...............................23
Appendix ...............................................................................................................................................................................................24
Notes/Voltage/Current/Frequency Ratings ..............................................................................................................25-27
OBX-IC Default Values ....................................................................................................................................................................28
Wire Sizes............................................................................................................................................................ ...................................29
Maintenance........................................................................................................................................................................................29
Warranty............................................................................................................................................................... ..................................30
Product Registration..................................................................................................................................... ..... .............................32
2
Welcome to the OutBack Power Systems OutBack Extreme Series
Inverter/Charger (OBX-IC) System
The OutBack Extreme Series Inverter/Charger o ers a complete power conversion system—DC to AC,
battery charging, and an AC transfer switch—and can be used in a stand-alone or mobile back-up
application. It is designed for use in enclosed locations.
OutBack Power Systems does everything possible to assure the components you purchase will
function properly and safely when installed as instructed according to local and national electrical
codes. Please read all of the following instructions and the instructions that come with any other
OutBack components that make up your power system. Further instructions on individual OutBack
Extreme set-ups as well as systems assemblies are included with the FLEXware manuals.
The OutBack Extreme Series Inverter/Charger Installation Manual covers the following information:
• Safety
• OBX-IC parts, standard and optional
• Initial inspection of the component
• Preparing the mounting surface
• Fastening the OBX-IC to the mounting surface
• General electrical information
OutBack Extreme Series Inverter/Charger Model
OBX -IC2524P-120/60:
• 2500VA/24VDC
• 120VAC/60Hz
• 30 amp AC transfer switch with neutral/ground switching
• Environmentally protected unit
Each model inverter/charger has a single phase output marked with this symbol:
Each inverter puts out a sine wave waveform marked with this symbol:
3
Required Conductors
• Each installation di ers, including distances between the OBX-IC and the AC and DC
components it connects to. For this reason, we do not supply conductors.
• Use 2/0 AWG (.3648” or 9.26 mm), 4/0 AWG (.4600” or 11.7 mm), or larger approved cables rated
75
0
C or higher for DC wiring
• Use #10 AWG
(.1019” or 2.60 mm) or larger approved cables rated 75
0
C or higher for AC wiring
Environmental Concerns
In the event an OutBack Extreme Inverter/Charger needs to be disposed of, its aluminum casing is
easily recyclable as are any stripped out internal metal and plastic parts. All circuit boards and electronic
components should be disposed or recycled in accordance with local environmental laws.
Maintenance
• Periodically check that the battery cable lugs are tight and secure according to the recommended
torque settings (60-inch pounds/6.77 Nm).
• Brush o excessive dust from the inverter/charger as needed.
• Check that fasterners securing the inverter/charger to its mounting surface are tight.
If the OBX-IC is not inverting:
• Verify the DC battery voltage at the inverter/charger terminals
• Verify a lack of AC output
• Call OutBack Technical Support for further assistance.
Storage
Store each inverter/charger unit in a cool, dry area.
Parts Included
• One OutBack Extreme Series Inverter/Charger (OBX-IC)
• One “WARNING ELECTRICAL SHOCK” sticker to place on the exterior of the OBX-IC mounting
location
• One packet of silicone grease to protect CAT 5e communication cable connections
• One installation manual
• One Turbo Kit
NOTE: Due to the variety of installation options available to a user, mounting hardware is not included.
Any chosen fasteners must be adequate to support the weight of the OBX-IC and no fewer than four
fasterners, one per corner, should be used for a safe installation.
Dimensions
• Each OBX-IC measures 8.25” x 16.25” x 13” (20.95 cm x 41.27 cm x 33.02 cm)
• Depending on the model, an inverter/charger weighs between 56 (25.4 kg) and 62.6 lbs (28.39 kg).
4
IMPORTANT SAFETY INSTRUCTIONS/SAVE THESE INSTRUCTIONS
Read all instructions and cautionary markings on the inverter/charger, the batteries and all appropriate
sections of this installation and user manual as well as other component manuals before using the
system.
Be cautious around electricity, electrical components, and batteries. Shocks, burns, injury, and even
death can occur if an installer comes in contact with electricity.
Install all components and wiring according to national and local electrical and building codes. This
includes:
• Submitting a plan to the local building department
• Passing inspection
OutBack Power Systems cannot be responsible for system failure, damages, or injury resulting from
improper installation of their products.
Use only the recommended DC and AC wire sizes or greater. Be sure all wires are in good condition.
Install the inverter/charger in a dry location, preferably indoors.
• Install the inverter/charger in a shaded area out of direct sun
light for best operation.
• For installations where the inverter/charger may be exposed to water spray, a sealed inverter/
charger must be used and mounted either with the base down (shelf mounting) or with the AC
wiring compartment facing down (wall mounting).
• If mounted with the base down, water cannot be allowed to accumulate around the inverter/
charger’s base. There is a drainage system on the base of the inverter/charger to dispel
condensation.
• If submerged, water can enter this drain and cause failure.
INITIAL INSPECTION
Your inverter/charger is stoutly packaged for secure shipping. Please inspect the packaging and com-
ponent for damage or exposure to water prior to intallation. Never power up a damaged OBX-IC.
READ FIRST!
5
Design the battery enclosure to prevent accumulation and concentration of hydrogen gas in “pockets”
at the top of the enclosure. Vent the battery compartment from the highest point to the outside. A
sloped lid can also be used to direct the ow of hydrogen to the vent opening.
CAUTION
To reduce risk of injury, charge only deep-cycle lead acid, lead antimony, lead calcium, gel cell or
absorbed glass mat type rechargeable batteries. Other types of batteries may burst, causing personal
injury and damage. Never charge a frozen battery.
PERSONAL PRECAUTIONS
• Someone should be within range of your voice to come to your aid if needed.
• Keep plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.
• Wear complete eye protection. Avoid touching eyes while working near batteries. Wash your
hands with soap and warm water when done.
• If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters
an eye, ood the eye with cool running water at once for at least 15 minutes and get medical
attention immediately following.
• Baking soda neutralizes lead acid battery electrolyte. Keep a supply on hand in the battery area.
• NEVER smoke or allow a spark or ame in vicinity of a battery or generator.
• Be extra cautious to reduce the risk of dropping a metal tool onto batteries. It could short-circuit
the batteries or other electrical parts and can result in re or explosion.
• Remove personal metal items such as rings, bracelets, necklaces, and watches when working with
a battery or other electrical current. A battery can produce a short circuit current high enough to
weld a ring or the like to metal, causing severe burns.
WARNING: WORKING NEAR LEAD ACID BATTERIES CAN BE DANGEROUS. BATTERIES
GENERATE EXPLOSIVE GASES DURING NORMAL OPERATION.
6
• Never install extra washers between the terminal
mounting surface and the battery cable lug—
the connection must be direct and secure.
• Always install breakers or fuses within the
positive battery cable.
• Torque 2/0, 4/0, or larger NEC approved cables
rated 75
0
C or higher to 60-inch pounds/6.77Nm.
SYSTEM PROTECTION
An OutBack Extreme Series Inverter/Charger is part of an electrical system that protects:
• You
• The wires
• The components
• The devices served by the electrical system
Each OBX-IC must be part of a permanently grounded electrical system (see page 8). Grounding
protects people and equipment from electrical shock. Grounding must be done according to local and
national electrical codes.
OutBack circuit breakers protect wiring by limiting the amount of current entering a system. All wired
electrical systems require circuit breakers or fuses for protection.
OutBack o ers both breakers and fuses for over-current protection. If they are provided by other
vendors, they must be properly rated.
DC WIRING ORIGINATION
DC brass battery terminals with 8M x 1.00 stainless steel threaded studs
Battery Cable Lug
Lock Washer
Flat Washer
Nut
Stud
Insulator
Black=negative Battery terminal covers
Red=positive
7
AC WIRING ORIGINATION
AC Wiring Compartment
Lexan cover protects AC Wiring
Compartment Board
AC HOT OUT
AC NEUTRAL OUT
CHASSIS GROUND
NEU/GROUND BOND
AC NEUTRAL IN
AC HOT IN
FULL
OK
LOW
INVERTER
AC IN
BATTERY TEMP
MATE/HUB
INVERTER ON/OFF
INVERTER
ON/OFF
AUX+
AUX-
XCT-
XCT+
REMOVE JUMPER
TO DISABLE
GROUND SWITCHING
BATTERY
STATUS
INVERTER
STATUS
ERROR
AC WIRING COMPARTMENT BOARD
• AC HOT OUT supplies power to the loads.
• AC NEUTRAL OUT acts as neutral leg for loads
supplied by the OBX-IC and is common with the
AC NEUTRAL IN.
• CHASSIS GROUND connections are common
and act as grounds for both the incoming and
outgoing AC circuits.
• (AC) NEUTRAL/GROUND BOND is connected
to the chassis ground terminal with a removable
jumper.
• AC NEUTRAL IN acts as the neutral leg for AC
power supplied by either the grid or a generator
to the OBX-IC.
• AC HOT IN connects incoming AC from the grid
or a generator to the OBX-IC. This AC is used to
run loads and recharge batteries.
AC Terminal Block—secures AC
connections to the OBX-IC using set screws
8
AC AND DC GROUNDING REQUIREMENTS
• Connect only to a grounded, permanent wiring system. Ensure there is only one AC and DC
neutral-ground connection in the system at any time.
• If the system has a generator, disconnect its neutral-ground connection if present.
• For all installations, the negative battery conductor should be bonded to the grounding system at
one (and only one) point in the system.
• The OBX-IC should never be positive grounded.
The equipment ground on each is marked with this symbol:
PARTS AND ACCESSORIES
BATTERY TERMINAL COVERS
• The caps are made of sti plastic with a snap-on
design; remove them carefully using a at-blade
screwdriver inserted into the slots on the sides of
each cover.
• Always keep the battery terminal covers installed.
AC CONDUIT PLATE*
• AC conduit connects to the AC Conduit Plate for
installations which do not utilize an ACA.
Box lug for grounding the FX chassis
9
MOUNTING
• The OutBack Extreme Series Inverter/Charger is approved for indoor or enclosed protected mounting only.
• An OBX-IC weighs approximately 62 lbs (28.2 kg) and must be secured with appropriate fasteners to a sturdy
mounting surface capable of supporting its weight. It is easier for two people to install due to the OBX-IC’s
weight.
• The OBX-IC can be mounted in any position, but they perform better in locations o ering plenty of air
circulation.
• Due to the variance in other mounting methods, OutBack only endorses the use of FLEXware or previous
versions of its mounting plate for installing the OBX-IC and associated system components using M6 X 20mm
machine screws, one per corner. Follow the instruction manual that comes with each mounting system.
• If mounting the OBX-IC on other surfaces such as plywood, wall studs, or masonry, use appropriate fasteners
to support approximately its weight. OutBack cannot be responsible for damage to the inverter/charger if it is
attached with inadequate fasteners.
• Install and secure each OBX before attaching any wiring.
13”
Insert appropriate
fasterners at all
four corners of the
OBX-IC for a secure
installation.
16.25”
8.25””
10
AC HOT OUT
AC NEUTRAL OUT
CHASSIS GROUND
NEU/GROUND BOND
AC NEUTRAL IN
AC HOT IN
FULL
OK
LOW
INVERTER
AC IN
BATTERY TEMP
MATE/HUB
INVERTER ON/OFF
INVERTER
ON/OFF
AUX+
AUX-
XCT-
XCT+
REMOVE JUMPER
TO DISABLE
GROUND SWITCHING
BATTERY
STATUS
INVERTER
STATUS
ERROR
LOW VOLTAGE TERMINALS
Control Terminal
Wiring Block
NOTE: Keep Control
Wiring Terminal Block
screws tight and the
block itself secured
tightly to AC Board.
Otherwise, the OBX-IC
can malfunction. The
Terminal Block can be
unplugged for easier
wire installation and
removal/reinstallation of
the OBX-IC.
AUX OUTPUT
(AUX+/AUX-):
12VDC
at 0.7 amps (8.4 watts)
maximum is available at
these terminals; the AUX
outputs default mode is
to drive cooling fans or
the Turbo Fan.
XCT+/XCT- are non-
operational terminals (do
not connect).
INVERTER ON/OFF:
Allows for manual
or remote switch to
control the OBX-IC
(default operation
is “ON”); controlled
by the MATE when
the installed jumper
connecting these
terminals is present.
Jumper
11
AC
Follow these steps to wire the OBX-IC to your system:
1. Shut all AC breakers o or remove any fuses before connecting any wiring.
2. Shut o all DC breakers, including, if present, any PV breakers.
3. With all power o , run lengths of 10 AWG
(.1019” or 2.60 mm diameter) wire between the AC Wiring
Compartment Board AC out terminals and a 30 amp over current protection circuit breaker
depending on the OBX-IC model. The breaker should be installed inside of a metal enclosure, such
as OutBack’s FLEXware series or an existing panel.
4. With the over current protection connected, run lengths of 10 AWG
(.1019” or 2.60 mm diameter) wire
between the AC Wiring Compartment Board AC IN terminals and the AC input breaker. The breaker
should be installed inside of a metal enclosure, such as the FLEXware series or an existing panel.
The AC input hot conductor must be supplied through a 30 amp maximum AC branch rated circuit
breaker.
DC
• Use crimped and sealed copper ring terminal lugs with 5/16” (8 mm) hole or compression-type lug
to connect battery cables to DC terminals. Soldered cable lugs are also acceptable.
• Use recommended cable sizes (see page 29) to reduce losses and ensure high performance of OBX
(smaller cables can reduce performance and possibly damage the unit).
• Keep cables together (e.g., using a tie-wrap) as much as possible.
• Ensure cables pass through the same knockout and conduit ttings to allow inductive currents to
cancel.
WIRE CONNECTIONS
NOTE: A system’s individual voltage requirements (120 single phase, 120/240 split phase, or 3-phase)
as well as how each OBX-IC is to function all determine how the OBX-ICs are wired. Each OBX-IC must
be wired to the logical leg or phase of the system. Each OBX-IC must be programmed or “stacked”
according to this phase. Please see the FX and VFX Series Inverter/Charger Programming Manual before
connecting any wires to or from the OBX-IC.
TORQUE REQUIREMENTS
CONNECTION TORQUE IN POUND MEASURES
AC and PV breakers to 22 inch-lbs/2.48 Nm
DC shunt to 15 foot-lbs/20.4 Nm
DC battery connections to 10 foot-lbs/13.6 Nm
OBX-IC’s DC Terminals to 5 foot-lbs/5.8 Nm
OBX-IC’s AC Terminals to 30 inch-lbs/3.38 Nm
Table 1 Torque Values for Installation
12
AC HOT OUT
AC NEUTRAL OUT
CHASSIS GROUND
NEU/GROUND BOND
AC NEUTRAL IN
AC HOT IN
FULL
OK
LOW
INVERTER
AC IN
BATTERY TEMP
MATE/HUB
INVERTER ON/OFF
INVERTER
ON/OFF
AUX+
AUX-
XCT-
XCT+
REMOVE JUMPER
TO DISABLE
GROUND SWITCHING
BATTERY
STATUS
INVERTER
STATUS
ERROR
AC HOT OUT
• Supplies the AC hot output conductors
through a 30 amp maximum AC branch
rated circuit breaker using 10 AWG (.1019”
or 2.60 mm diameter) wire and connector
to the AC.
AC NEUTRAL OUT/AC NEUTRAL IN
• Connects the AC neutral input conductor
to the AC NEUTRAL IN terminal.
• Connects the AC neutral output conductor
to the AC NEUTRAL OUT terminal.
• Do not assume these terminals are
common in the OBX-IC.
• The NEUTRAL IN and NEUTRAL OUT
conductors should not be common
(connected in any way) prior to
connection with an OBX-IC.
NEUTRAL/GROUND SWITCHING
SYSTEM
• Connects AC output neutral conductors to
the CHASSIS GROUND and NEU/GROUND
BOND terminals while it’s inverting.
• If there is only one OBX-IC in the system,
leave the copper bus jumper (provided)
installed between the CHASSIS GROUND
and NEU/GROUND BOND terminals. If
there is more than one OBX-IC in a system,
remove the copper bus from every Slave
OBX-IC.
AC HOT IN
• The AC hot input conductor (black) must
be supplied through a 30 amp maximum
AC branch rated circuit breaker and
connected to the AC HOT IN.
• 10 AWG (.1019” or 2.60 mm diameter) wire
is required for the OBX-IC’s AC transfer
switch.
AC WIRING NOTES FOR THE OBX-IC
13
LOW-VOLTAGE WIRING
The six-position terminal block can be
unplugged to make wiring easier and to
simplify the removal and reinstallation of an
OBX-IC. It must be securely and completely
plugged in for proper OBX-IC functioning.
Otherwise, operational errors can occur.
INVERTER and ON/OFF
• Replacing the pre-installed jumper (connecting the ON/OFF terminals) with a switch allows manual
control of the OBX-IC.
• When a jumper is installed in either location, the inverter will be ON or controlled by the optional
MATE System Controller and Display.
• When a switch is installed, the inverter is ON when the switch is closed and OFF when the switch is
open.
Control Wiring Terminal Block,
side view
INVERTER ON/OFF
Jumper
A switch can be wired to the INVERTER
and ON/OFF terminals to manually
control the OBX-IC
XCT+/XCT- are not operational
12 VDC at 0.7 amps (8.4 w) is available
at the AUX+/AUX- terminals
Control Wiring Terminal Block
AC HOT OUT
AC NEUTRAL OUT
CHASSIS GROUND
NEU/GROUND BOND
AC NEUTRAL IN
AC HOT IN
FULL
OK
LOW
INVERTER
AC IN
BATTERY TEMP
MATE/HUB
INVERTER ON/OFF
INVERTER
ON/OFF
AUX+
AUX-
XCT-
XCT+
REMOVE JUMPER
TO DISABLE
GROUND SWITCHING
BATTERY
STATUS
INVERTER
STATUS
ERROR
14
Prior to installing an ON/OFF switch, if the OBX-IC’s AC output is o , check that the
jumper is present and well-connected before installing a switch. You want to con rm the
system is in good working order.
Should you decide to install an OutBack MATE at a later date, bear in mind the installed
switch overrides the control provided by the MATE if the switch is set to OFF. If the switch
is set to ON, the MATE will function normally and control the inverter(s).
• When a system is ordered with a MATE, the MATE handles all OBX-IC ON/OFF functions (unless an
optional ON/OFF switch is installed).
AUXILIARY OUTPUT ( AUX + / AUX - )
The Auxiliary output system uses the AUX + and AUX – terminals. It is programmed through the MATE
to do a variety of tasks:
• The default use for these terminals drives the OutBack Turbo for external cooling.
NOTE: These terminals should not be connected to any type of DC load greater than 0.7 amps.
• The OBX-IC includes internal electronic over-current protection for the AUX 12VDC output circuit
which auto resets if it is short-circuited. No additional fuses are required.
• For automatic or advanced generator start functions, the Auxiliary Output can drive a 12V relay coil
for the two-wire starting circuitry of a generator. OutBack recommends a good quality gold-plated
relay.
NOTE: OutBack Power Systems does not support three-wire start generators; however, a three-wire
to two-wire conversion kit is available from an electronic control manufacturer such as Atkinson
Electronics (www.atkinsonelectronics.com).
XCT + / XCT -
These terminals are not operational at this time.
15
AC HOT OUT
AC NEUTRAL OUT
CHASSIS GROUND
NEU/GROUND BOND
AC NEUTRAL IN
AC HOT IN
FULL
OK
LOW
INVERTER
AC IN
BATTERY TEMP
MATE/HUB
INVERTER ON/OFF
INVERTER
ON/OFF
AUX+
AUX-
XCT-
XCT+
REMOVE JUMPER
TO DISABLE
GROUND SWITCHING
BATTERY
STATUS
INVERTER
STATUS
ERROR
RTS, MATE/HUB WIRING
RJ-11 modular jack connects RTS, the optional
external battery temperature sensor.*
RJ-45 jack connects the MATE System Controller
and Display or the HUB Communication
Manager to the OBX-IC using CAT5 cable.**
* When a HUB is used, plug the RTS into the
Master OBX-IC, which should be plugged into
HUB’s Port 01. The RTS cable is folded and
routed under the AC Wiring Compartment’s
Lexan cover, tting into a small indentation in
the aluminum casting between the battery
terminals. ONLY USE THE OUTBACK RTS; OTHER
BRANDS WILL YIELD INCORRECT READINGS.
** If the system has multiple OBX-ICs and/or
OutBack Charge Controllers, a HUB is required.
LED Color 12 VDC 24 VDC 48 VDC
Green O (FULL) 12.5 or higher 25.0 or higher 50.0 or higher
Yellow O (OK) 11.5 to 12.5 23.0 to 24.8 46.0 to 49.6
Red O (LOW) 11.5 or lower <23.0 <46.0
LED Color LED Action LED Indicates
Green
O
Solid GREEN Inverter ON
Flashing GREEN Search Mode or Slave Power
O Inverter OFF
Ye l l o w
O
Solid YELLOW AC Source is Connected
Flashing YELLOW AC Input Live—Waiting to Connect to the OBX-IC
O No AC Input Present
Red
O
Solid RED Error—An Error Message will be automatically displayed
on the MATE
Flashing RED Warning—A non-critical fault happened to the OBX-IC;
the MATE can access this info.
Status Lights
Battery Lights
GREEN
YELLOW
RED
16
SAMPLE INSTALLATIONS
Single OBX-IC System:
• A 30A input breaker must be used
with an OBX-IC
• A single OBX-IC can continuously
power up to 2.5kW of loads depend-
ing on the ambient temperature.
GROUND TBB
MECHANICAL
INTERLOCK
INVERTER/CHARGER
AC HOT IN AC HOT OUT
HUB/MATE
30 AMP
BYPASS
BREAKER
30 AMP
OUTPUT
BREAKER
AC NEUTRAL OUT
CHASSIS GROUND
DISPLAY
30 AMP
INPUT
BREAKER
BLACK
BLACK
BLACK
WHITE
GREEN
NOTE:
1. All cables are to be
10AWG THHN or larger.
AC SOURCE
AC LOADS
WHITE
WHITE
AC NEUTRAL IN
WHITE
BLACK
BLACKBLACK
BLACK
17
SERIES DUAL OBX-IC CONFIGURATION
• This system can continuously power up to 5kW of AC loads depending on the ambient tempera-
ture.
• A dual OBX-IC system requires 30A two-pole AC input breakers.
NOTE:
• Stacking two OBX-ICs in series means there are OBX-ICs directly connected to two separate 120VAC
output legs. These legs produce 240VAC between them (the series portion) as the two inverters
are “out of phase” with respect to each other. This allows all of the OBX-ICs to power either of the
120VAC output legs (the parallel portion).
• When the OBX-ICs are connected in series for 120/240VAC:
• The FW-X240 Auto Transformer can be connected to the AC output; both OBX-ICs power
capacity is then available on either 120VAC output circuit.
• This allows higher e ciency and better performance as heavy 120VAC loads are powered
by both OBX-ICs.
• The FW-X240 Auto Transformer also allows the Master OBX-IC to power loads on either
120VAC output circuit with the Slave OBX-IC o , reducing idle power consumption and
improving system e ciency.
• The Slave OBX-IC must be programmed through the MATE as a “Classic Slave’” (series stacking, no
FW-X240 Auto Transformer) or as “OB Slave L2” (series/parallel stacking, FW-X240 included).
The OBX-IC connected to Port 01 of the HUB is always the Master (1-2ph MASTER)
18
Series/Parallel Using Two OBX-ICs for 120/240VAC applications (shown without an installed optional FW-X240
Auto Transformer)
GROUND TBB
L2 INVERTER
HUB
1
1ST
MATE
MECHANICAL
INTERLOCK
L1 INVERTER
2345678910
AC HOT IN
AC HOT OUT
HUB/MATE
AC HOT IN
AC HOT OUT
HUB/MATE
AC NEUTRAL IN
30 AMP INPUT
BREAKER
30 AMP
BYPASS
BREAKERS
30 AMP
OUTPUT
BREAKERS
AC NEUTRAL OUT
AC NEUTRAL OUT
AC NEUTRAL IN
CHASSIS GROUND
CHASSIS GROUND
DISPLAY
30 AMP
INPUT
BREAKER
RED
BLACK
RED
BLACK
RED
BLACK
RED
BLACK
RED
BLACK
CAT 5
COMM
CABLES
AC OUTPUT L1
BLACK TBB
AC OUTPUT L2
RED TBB
AC NEUTRAL OUTPUT
WHITE TBB
AC INPUT L1
BLACK TBB
AC INPUT L2
RED TBB
GREEN
GREEN
AC INPUT FROM UTILITY GRID OR AC SOURCE
TO AC LOADS
Notes:
1. All cables are to be
minimally 10AWG THHN
2. TBB = Terminal Bus
Bar
AC NEUTRAL INPUT
WHITE TBB
BLACK
WHITE
WHITE
RED
BLACK
RED
WHITE
WHITE
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